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Finding the Fourth Proportional to 123,601.80, 170,420.04 and 104,446.92

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Solution

The fourth proportional to 123,601.80, 170,420.04 and 104,446.92 is: 144,009.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,601.80 : 170,420.04 = 104,446.92 : x
  2. Step 2: Convert to fraction form
    123,601.80/170,420.04 = 104,446.92/x
  3. Step 3: Cross multiply
    123,601.80x = 170,420.04 × 104,446.92
  4. Step 4: Simplify right side
    123,601.80x = 17,799,848,284.28
  5. Step 5: Solve for x
    x = 17,799,848,284.28/123,601.80
  6. Step 6: Final answer
    x = 144,009.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.